HP w1907 Monitor intermittent picture

A client has a HP w1907 monitor and the desktop shows intermittently but for only a second. I have changed out cables with no change. I can see the desktop when I connect remotely. Any idea what is going on?
Thanks,
Mags

I agree with John. While I have repaired a couple of HP monitors, I have the parts and electronic equipment here to do it. I do have an intermittent HP monitor in the back room that just hasn't been worth the effort... especially since I have several spare monitors.

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